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Red Hat Bugzilla – Attachment 146939 Details for
Bug 117561
Race condition in fs/dcache.c
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[patch]
possible debug patch for nr_unused race
dget_locked_debug.patch (text/plain), 515 bytes, created by
Jeff Layton
on 2007-01-30 18:25:13 UTC
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Description:
possible debug patch for nr_unused race
Filename:
MIME Type:
Creator:
Jeff Layton
Created:
2007-01-30 18:25:13 UTC
Size:
515 bytes
patch
obsolete
>--- linux-2.4.21/fs/dcache.c.dgetlckdbg >+++ linux-2.4.21/fs/dcache.c >@@ -231,8 +231,16 @@ static inline struct dentry * __dget_loc > return dentry; > } > >+static unsigned int bad_dget_locked_counter; > struct dentry * dget_locked(struct dentry *dentry) > { >+ if (unlikely(spin_is_locked(&dcache_lock) == 0)) { >+ if (unlikely((bad_dget_locked_counter % 100) == 0)) { >+ printk("dget_locked called without dcache_lock!\n"); >+ dump_stack(); >+ } >+ ++bad_dget_locked_counter; >+ } > return __dget_locked(dentry); > } >
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